Applies to Data ONTAP operating in 7-Mode Data ONTAP 8 ONTAP 9 Description A disk acting abnormally can affect storage performance. Common symptoms associated with a misbehaving disk are: Higher laten...Applies to Data ONTAP operating in 7-Mode Data ONTAP 8 ONTAP 9 Description A disk acting abnormally can affect storage performance. Common symptoms associated with a misbehaving disk are: Higher latency and utilization on one disk than the rest of its partners in the same RAID group Back to back (B or b) Consistency Points in "sysstat" command output